I remember seeing a thread that contains a collection of exploded views for bodies and lenses, but I couldn't find it.
My 24-105 is broken. Long story short, I tripped and the lens was detached from the lens mount. Got a few scratches on the battery grip, a few nicks on the body and destroyed the eyecup. The rear lens element doesn't appeared to be scratched despite the lens tumbled down about 20 feet forward to my right.
It looks like the ribbon that connects to the lens circuit board needs to be soldered. There are a couple holes on the lens mount at the lens' end are damaged. One strip of "ribbon" also appeared to be damaged. I got the zoom right tightened a few months ago and I think my warranty expired too. Do you guys think it can be an expensive repair?